Kernel

[RFC][PATCH 0/7] low latency synchrounous lumpy reclaim
If slow usb storage is connected and run plenty io operation, lumpy reclaim often stall in shrink_inactive_list(). This patch series try to solve this issue. At least, This works fine on my desktop and usb stick environment :-) This patch is still RFC. comment, reviewing and testing are welcome! Wu Fe... 5 Aug 2010 02:40

[PATCH 3/7] vmscan: synchrounous lumpy reclaim use lock_page() instead trylock_page()
When synchrounous lumpy reclaim, there is no reason to give up to reclaim pages even if page is locked. We use lock_page() instead trylock_page() in this case. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.com> --- mm/vmscan.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff -... 5 Aug 2010 02:40

[PATCH 6/7] vmscan: remove PF_SWAPWRITE from __zone_reclaim()
When zone_reclaim() was merged at first, It always order-0 allocation with PF_SWAPWRITE flag. (probably they are both unintional). Former was fixed commit bd2f6199cf (vmscan: respect higher order in zone_reclaim()). However it expose latter mistake because !order-0 reclaim often cause dirty pages isolation and ... 5 Aug 2010 02:40

Documentation/padata.txt: fix typos etc.
On Wed, Aug 04, 2010 at 08:14:52PM -0700, Randy Dunlap wrote: From: Randy Dunlap <randy.dunlap(a)oracle.com> Fix typos & grammar. Use CPU instead of cpu in text. Signed-off-by: Randy Dunlap <randy.dunlap(a)oracle.com> Acked-by: Steffen Klassert <steffen.klassert(a)secunet.com> Thanks, Steffen ... 5 Aug 2010 02:40

[linux-next] build failure
Yestersday's linux-next(2.6.35_next_20100802) build fails with the following error on both system p and x. drivers/net/ixgbe/ixgbe_main.c: In function 'ixgbe_select_queue': drivers/net/ixgbe/ixgbe_main.c:6159: error: 'struct ixgbe_fcoe' has no member named 'up' drivers/net/ixgbe/ixgbe_main.c: In functio... 5 Aug 2010 02:40

pps: fix race in PPS_FETCH handler
On Thu, Aug 05, 2010 at 01:06:40AM +0400, Alexander Gordeev wrote: There was a race in PPS_FETCH ioctl handler when several processes want to obtain PPS data simultaneously using sleeping PPS_FETCH. They all sleep most of the time in the system call. With the old approach when the first process waiting on t... 5 Aug 2010 11:20

v4 Update the node sysfs code
On Tue, 03 Aug 2010 08:42:35 -0500 Nathan Fontenot <nfont(a)austin.ibm.com> wrote: Update the node sysfs code to be aware of the new capability for a memory block to contain multiple memory sections. This requires an additional parameter to unregister_mem_sect_under_nodes so that we know which memory sect... 5 Aug 2010 01:36

v4 Update the find_memory_block declaration
On Tue, 03 Aug 2010 08:41:45 -0500 Nathan Fontenot <nfont(a)austin.ibm.com> wrote: Update the find_memory_block declaration to to take a struct mem_section * so that it matches the definition. Signed-off-by: Nathan Fontenot <nfont(a)austin.ibm.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu(a)jp.fujitsu.... 9 Aug 2010 10:06

v4 Allow memory_block to span multiple memory sections
On Tue, 03 Aug 2010 08:40:49 -0500 Nathan Fontenot <nfont(a)austin.ibm.com> wrote: Update the memory sysfs code that each sysfs memory directory is now considered a memory block that can contain multiple memory sections per memory block. The default size of each memory block is SECTION_SIZE_BITS to mainta... 5 Aug 2010 01:36

v4 Move the find_memory_block() routine up
On Tue, 03 Aug 2010 08:36:39 -0500 Nathan Fontenot <nfont(a)austin.ibm.com> wrote: Move the find_memory_block() routine up to avoid needing a forward declaration in subsequent patches. Signed-off-by: Nathan Fontenot <nfont(a)austin.ibm.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu(a)jp.fujitsu.com> ... 5 Aug 2010 01:36